diff --git a/public/images/email_logo.svg b/public/images/email_logo.svg
new file mode 100644
index 000000000..35501c2ba
--- /dev/null
+++ b/public/images/email_logo.svg
@@ -0,0 +1,15 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="400" height="88" viewBox="0 0 400 88">
+  <defs>
+    <linearGradient id="linear-gradient" y1="0.501" x2="1" y2="0.501" gradientUnits="objectBoundingBox">
+      <stop offset="0" stop-color="#6dffff"/>
+      <stop offset="1" stop-color="#0080ff"/>
+    </linearGradient>
+  </defs>
+  <g id="logo" transform="translate(-181 -101)">
+    <rect id="矩形_1" data-name="矩形 1" width="400" height="88" transform="translate(181 101)" fill="#fff" opacity="0"/>
+    <g id="顶部logo" transform="translate(181.055 106.72)">
+      <path id="形状" d="M64.185,77.408H51.334V0h8.379V69.74h4.473v7.668Zm10.223-8.6,0,0-6.029-3.653V10.536l6.033-3.655V68.809Zm-38.624-.144V17.273l-3.337-1.217V6.881l12.71,7.382v6.953L41.891,20V65.511l-6.1,3.152ZM22.152,60.493V17.059L28.9,20.427v36.7l-6.742,3.365Zm69.793,0h0l-3.051-.5L85.2,53.9v3.941l-2.343-1.217V20.856l2.84-1.433,3.265,4.445-.072-5.734,3.054-1.147V60.493ZM.072,57.841H0V23.295l14.626,4.874v5.806L5.68,32.326V47.52L10.508,45.3V40.5H7.74V35.551l6.957.715V50.388L.073,57.84Zm120.7-.142h-.005l-9.226-.432-5.678-7.382v4.946l-5.894-1.219V27.881l5.894-1.433v4.8l5.325-7.169,8.021-.859L108.417,40.354l12.351,17.341Z" transform="translate(0 0)" fill="url(#linear-gradient)"/>
+      <path id="形状-2" data-name="形状" d="M192.836,66.37l0,0-1.63-1.215a16.1,16.1,0,0,0,1.136-2.222A15.2,15.2,0,0,0,193,61.32c.04-.111.08-.22.12-.326a12.573,12.573,0,0,0,.567-1.934l1.918.5a4.741,4.741,0,0,0-.142.646c-.066.2-.132.414-.205.652-.085.276-.179.58-.292.925a22.742,22.742,0,0,1-.852,2.15,27.108,27.108,0,0,1-1.278,2.434ZM64.824,66.3h0l-.991-.356-.924-.358c.142-.571.253-1.115.351-1.595.051-.248.1-.482.146-.7.085-.423.144-.847.207-1.3.044-.318.09-.645.148-1l.01-.12c.068-.806.132-1.567.132-2.388V50.6h6.888l1.491-2.222H66.1c-.237.359-.453.677-.645.957-.154.226-.294.43-.419.62-.1.124-.188.23-.263.32-.146.174-.234.279-.234.326l-1.491-1.5c.418-.565.851-1.148,1.136-1.577.172-.3.369-.607.578-.927.137-.211.277-.425.416-.65a14.379,14.379,0,0,0,.713-1.361c.071-.149.14-.293.209-.432l1.777,1a3.542,3.542,0,0,1-.31.7c-.042.079-.082.157-.118.229h7.668v1.718L73.272,50.53h1.136V50.1H76.4V63.646a2.617,2.617,0,0,1-.639,1.793,2.039,2.039,0,0,1-1.633.718H72.989V63.934h1.136c.191,0,.283-.117.283-.358V61.712H71v3.943H69.013V61.712H65.676c-.043.386-.11.738-.174,1.08-.043.226-.083.439-.112.641a8.225,8.225,0,0,1-.173.91c-.042.181-.082.352-.11.522-.071.437-.143.725-.214,1a2.19,2.19,0,0,0-.07.426Zm6.105-9.317v2.58h3.409v-2.58Zm-5.042.072v2.508h3.054V57.053Zm5.042-4.3v2.006h3.409V52.752Zm-5.042,0v2.006h3.054V52.752ZM188.649,66.3l0,0-1.7-1.142c.058-.118.128-.272.209-.45.117-.256.262-.574.429-.913.288-.584.575-1.234.852-1.934a15.544,15.544,0,0,0,.611-1.811q.05-.172.1-.339a7.222,7.222,0,0,0,.283-2.006V44.511h15.62v2.22h-13.7V57.555a8.817,8.817,0,0,1-.211,1.862,19.834,19.834,0,0,1-.5,1.937c-.208.627-.418,1.192-.622,1.738l-.019.052a16.993,16.993,0,0,1-.639,1.577c-.113.231-.207.442-.29.628-.073.162-.141.314-.206.447a2.02,2.02,0,0,0-.211.5Zm14.554-.07v0l-2.342-6.449,1.777-.862,2.413,6.451-1.844.86Zm-6.036,0h-1.491V64.006h1.491a.259.259,0,0,0,.214-.072.266.266,0,0,0,.072-.216V58.486h-4.828V48.953h3.123l1.208-2.222,1.7,1.219-.567,1h4.189v-.5h1.988v7.526a2.635,2.635,0,0,1-.639,1.793,2,2,0,0,1-1.442.726,1.727,1.727,0,0,1-.193-.011H199.44v5.232a2.627,2.627,0,0,1-.639,1.793A2.313,2.313,0,0,1,197.167,66.229Zm-2.554-11.182v1.289h7.382c.214,0,.286-.072.286-.286v-1Zm0-3.8v1.5h7.668v-1.5Zm-9.87,14.981h0l-1.772-.932,3.407-7.884,1.846.931-3.478,7.884Zm-124.25,0h-4.4v-9.1c-.142.214-.286.433-.425.646l-.121.183c-.1.156-.2.309-.306.46l-1.561-1.361A12.764,12.764,0,0,0,55.1,54.545l.012-.029c.345-.837.7-1.7.912-2.409.2-.746.339-1.293.5-1.934a5.114,5.114,0,0,0,.211-1V47.376H54.812V45.154h8.237v2.222h-4.4v2.078c0,.048-.032.224-.1.575-.032.174-.071.386-.117.644a22.027,22.027,0,0,1-.78,2.8h3.123v-.43h1.988V63.718a2.617,2.617,0,0,1-.639,1.793A2.039,2.039,0,0,1,60.493,66.229ZM57.936,55.762v8.316h2.415c.212,0,.283-.073.283-.288V55.762ZM167.774,66.157h-1.988V56.05h-8.379a17.373,17.373,0,0,1-1.064,3.869c-.455,1.111-.906,2.189-1.421,3.154-.518.9-.935,1.6-1.277,2.15-.528.62-.639.811-.639.862l-1.563-1.433c.007-.01.215-.289.5-.718.292-.443.671-1.135,1.066-1.865a24.842,24.842,0,0,0,1.277-2.722,23.343,23.343,0,0,0,1.064-3.37h-5.181V53.756h5.467a1.614,1.614,0,0,0,.07-.574V47.235h-4.045V45.012h19.6v2.222h-3.479v6.593h5.042V56.05h-5.042V66.157ZM157.691,47.235v5.947a1.447,1.447,0,0,0-.07.574h8.093V47.235ZM87.9,66.157h0v0l-.281-1.073-.283-1.075a5.866,5.866,0,0,0,.78-.288c.449-.193,1.022-.45,1.918-.859.636-.321,1.448-.79,2.485-1.433a17.173,17.173,0,0,0,2.626-2.009H87.259V57.2h9.87a13.358,13.358,0,0,0,.78-1.363,8.376,8.376,0,0,0,.569-1.433v-4.73h1.988V54.9a6,6,0,0,1-.994,2.294H109.2v2.22h-8.1l7.882,4.8-.993,1.934-8.452-5.16.783-1.577h-2.2A18.535,18.535,0,0,1,96.063,61.5c-.605.49-1.325,1.03-2.2,1.649a16.9,16.9,0,0,1-2.132,1.291c-.247.125-.475.248-.694.368a9.545,9.545,0,0,1-1.152.563,10.6,10.6,0,0,1-1.066.463c-.1.038-.193.074-.281.11A2.943,2.943,0,0,1,87.9,66.157Zm40.328-4.946a3.976,3.976,0,0,1-3.9-3.943,3.905,3.905,0,1,1,7.81,0A3.977,3.977,0,0,1,128.226,61.21ZM94.572,56.765h0l-5.322-2.435.711-2.078,5.325,2.436-.71,2.076Zm165.006-.358H218.966V54.831h40.612v1.577Zm-218.469,0H.5V54.831H41.109v1.577Zm145.764-.5,0,0-3.618-3.725,1.277-1.649,3.692,3.727L186.874,55.9ZM96.845,54.044h0L91.52,51.533l.78-2.078,5.325,2.58-.779,2.006Zm-7.457-2.8H87.4V46.373h9.942L96.7,45.012l1.774-1,1.064,2.436h7.526v-.43h1.988v5.16h-1.988V48.6H89.388v2.652Zm97.484-1.291,0,0-3.69-3.725,1.28-1.646,3.692,3.725-1.278,1.646ZM25.985,33.9H0V.144H41.394l-2.557,4.37v.072h-26.7V29.53h17.4v-11.9H20.8V13.188H41.25V33.9l-11.713,0V30.319L25.986,33.9Zm207.676-.07h0l-11.356,0V.072h11.358v18.2l11.005-8.17h14.059L245.732,20.141l12.706,13.685-12.706,0L233.661,21.217V33.833Zm-66.1,0H156.2V10.106h11.36V33.831Zm-24.354,0h-31.1V.072h11.857V29.458h21.725l-2.484,4.372Zm-44.587,0H79.946V14.407H73.911V10.178h6.036V2.436h11.36v7.742H101.6l-2.84,4.229H91.307V29.746h9.8L98.62,33.829Zm-35.287,0H51.972V10.106h11.36V33.831Zm148.39-.144H200.5V10.034l-3.9,4.229h-7.1V33.687H178.141V10.034h33.582V33.687ZM167.56,7.31H156.2V0h11.36V7.31Zm-104.228,0H51.972V0h11.36V7.31Z" transform="translate(140.368 8.673)" fill="#fffdfd"/>
+    </g>
+  </g>
+</svg>
diff --git a/public/message_template/issue_assigned.html b/public/message_template/issue_assigned.html
index c45bb6eec..641200ead 100755
--- a/public/message_template/issue_assigned.html
+++ b/public/message_template/issue_assigned.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/issue_changed.html b/public/message_template/issue_changed.html
index db696a0cc..ab70668b6 100755
--- a/public/message_template/issue_changed.html
+++ b/public/message_template/issue_changed.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/issue_deleted.html b/public/message_template/issue_deleted.html
index 335fdfbc0..4da71b587 100755
--- a/public/message_template/issue_deleted.html
+++ b/public/message_template/issue_deleted.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/issue_expire.html b/public/message_template/issue_expire.html
index 34701a0a3..babc8c090 100644
--- a/public/message_template/issue_expire.html
+++ b/public/message_template/issue_expire.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/organization_joined.html b/public/message_template/organization_joined.html
index 7d50ebdb3..bd021d5f1 100755
--- a/public/message_template/organization_joined.html
+++ b/public/message_template/organization_joined.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/organization_left.html b/public/message_template/organization_left.html
index b2eeffbbe..858530648 100755
--- a/public/message_template/organization_left.html
+++ b/public/message_template/organization_left.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/organization_role.html b/public/message_template/organization_role.html
index ad597dea6..229b6da1c 100755
--- a/public/message_template/organization_role.html
+++ b/public/message_template/organization_role.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_issue.html b/public/message_template/project_issue.html
index 4b6812fce..05fd59b2e 100755
--- a/public/message_template/project_issue.html
+++ b/public/message_template/project_issue.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_joined.html b/public/message_template/project_joined.html
index fa8f0771b..1a47994af 100755
--- a/public/message_template/project_joined.html
+++ b/public/message_template/project_joined.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_left.html b/public/message_template/project_left.html
index 81453d22d..beadefe4c 100755
--- a/public/message_template/project_left.html
+++ b/public/message_template/project_left.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_member_joined.html b/public/message_template/project_member_joined.html
index b22ced2d7..7ae5b37f8 100755
--- a/public/message_template/project_member_joined.html
+++ b/public/message_template/project_member_joined.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_member_left.html b/public/message_template/project_member_left.html
index d1a8b044f..2f1b75508 100755
--- a/public/message_template/project_member_left.html
+++ b/public/message_template/project_member_left.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_milestone.html b/public/message_template/project_milestone.html
index 0b2a0725c..19111666b 100644
--- a/public/message_template/project_milestone.html
+++ b/public/message_template/project_milestone.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_milestone_completed.html b/public/message_template/project_milestone_completed.html
index 6b62a8cb9..3ba86dc05 100644
--- a/public/message_template/project_milestone_completed.html
+++ b/public/message_template/project_milestone_completed.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_pull_request.html b/public/message_template/project_pull_request.html
index fe389e98c..c4afdf150 100755
--- a/public/message_template/project_pull_request.html
+++ b/public/message_template/project_pull_request.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_role.html b/public/message_template/project_role.html
index 3e8e8b55c..49db5997b 100755
--- a/public/message_template/project_role.html
+++ b/public/message_template/project_role.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/project_setting_changed.html b/public/message_template/project_setting_changed.html
index ecea17ef8..d3c5db32e 100755
--- a/public/message_template/project_setting_changed.html
+++ b/public/message_template/project_setting_changed.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/pull_request_assigned.html b/public/message_template/pull_request_assigned.html
index 1d1810613..8c98ea303 100755
--- a/public/message_template/pull_request_assigned.html
+++ b/public/message_template/pull_request_assigned.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/pull_request_changed.html b/public/message_template/pull_request_changed.html
index ccbefad92..0278b60ed 100755
--- a/public/message_template/pull_request_changed.html
+++ b/public/message_template/pull_request_changed.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/pull_request_closed.html b/public/message_template/pull_request_closed.html
index c860a54a1..5bc26eb1c 100755
--- a/public/message_template/pull_request_closed.html
+++ b/public/message_template/pull_request_closed.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/pull_request_merged.html b/public/message_template/pull_request_merged.html
index 59812ddd3..b60db94a8 100755
--- a/public/message_template/pull_request_merged.html
+++ b/public/message_template/pull_request_merged.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/team_joined.html b/public/message_template/team_joined.html
index 36610f728..959d2d47f 100755
--- a/public/message_template/team_joined.html
+++ b/public/message_template/team_joined.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>
diff --git a/public/message_template/team_left.html b/public/message_template/team_left.html
index ea2cce649..f064c153a 100755
--- a/public/message_template/team_left.html
+++ b/public/message_template/team_left.html
@@ -24,7 +24,7 @@
 <div class="new_content">
   <div style="width: 598px; background:#fff; margin:20px auto;">
     <div style="height:50px; width: 578px; background:#3b94d6; padding:9px 10px 6px;border:1px solid #ddd; border-bottom:none;">
-      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.png" height="45" ></a>
+      <a href="{baseurl}"><img src="{baseurl}/images/email_logo.svg" height="45" ></a>
       <p style="color:#fff; float:right; margin-top:15px;">确实开源，协同创新</p>
       <div style="clear:both; overflow:hidden;"></div>
     </div>